Lamp-shade.



J. W. DUNHAM.

LAMP SHADE.

APPLICATION TILED JULY 17, 1914.

1,130,496. Patented Mar. 2, 1915,

same will more 'J'AMES W. DU NHAM, OF NEW YORK, N. Y.

LAMP-SHADE.

Specification of Letters latent.

Patented Mar. 2, 1915} Application filed J'uly 17, 1914. Serial No.851,543.

may concern.-

I, JAMES W. DUNH-AM,

Be it known that a citizen of the United States, residing at I thereofto shades for incandescent -'which the shade is adapted to have a sub-.stantially New York, in the county of- New York and State of New York,have invented certain new and useful Improvements in Lamp- Shades, ofwhich the following is a specification. p

This invention relates to lamp shades and withregard to certain morespecific features lamps in universal movement with respect to thelongitudinal axis of the lamp to permit-the shade to .be adjusted to anydesired angular position relative thereto.

. One of the objects of the present invention is to provide a' simpleand practical lamp shade which will be cheap tomanufacture "furtherobject is i shade of the above character which will be reliableandefiicient in use and is so designed as to prevent breakage of thelamp bulb as the shade and lamp are moved relatively to eachother.

'Other objects will be in part obvious and p in part hereinafter pointedout.

"The present invention accordingly consists in'the features ofconstruction, combination of-elements and arrangement of parts whichwill be exemplified in the device hereinafter described and the scope ofthe application of which will be indicated in the following claims.

-In the accompanying drawing, wherein is illustrated one of variouspossible embodiments of the prose t invention: Figure 1 is a sideelevation, partly in section, of the complete device, and showing indotted lines the relative position of the shade and bulb when moved fromvertical position; Fig. 2 is a detailed perspective view of the grippingarms;

Similar reference characters denote corres onding parts in both figures.

eferring now to the drawing in detail there is denoted at -5 a lampshade of metal or colored glass of any desired shape but preferablysubstantially as shown, as the conveniently fit" an electric light bulb6, with which it is preferably adapted to beused. This shade is provided7 through which passes a threaded stud 8, engaging a nut 9,

, shown comprises a to provide a lamp -16 and'lt' of each arm.

for securing the bulb gripping device to the shade. This gripping deviceas herein plurality of similar bent arms adapted to engage the bulb at aplurality of points in contradistinction to a gripping device, whichmight be used and engage the bulb by a line of surface contact such asmight occur by a wire bent in the form of a ring of a relatively flatband. These arms it will be noted are preferably made from a'pair ofwires having a with each other and spaced apart to engage the bulb alongimaginary longitudinal lines substantially 90 apart, although it is ofcourse to be understood that more arms may be used if desired, althoughthe present construction is believed to be more advantageous, as itpermits a. more rapid and convenient-removal or application of the shadeirregularly twisted central connection to a bulb. It further permits theshade to be turned relatively to the bulb as'may be desired, as shown bythe dotted lines, with greater ease.

The arms engaging the upper and lower parts of the bulb at single pointsthereby rotect the end point 12 of the bulb 6. Should it be attempted tomake the gripping device so as to have a line or surface contact withthe bulb there will be a decided tendency to snap off'this point 12 whenthe shade and bulb were moved relatively to each other, which will ofcourse destroy the usefulness of the bulb:

It is thought the method ofuse and operation of a device of thischaracter should be clear from the above description. It may be statedhowever, that the shade is particularly adapted for use in connectionwith a portable electric lamp of the general type shown in pendingapplication of \V .Dunham, Serial/Number 833,340, filed April 21',1914:, in which case the bulb (l is received in a socket 13, having aball and socket joint 14, with a portable standard 15. 'The lamp shadeis forced thereoi er to spring the yielding arms 10 and 11 outwardly, sothat they subsequently grip the bulb at the points Then" when the lampis swung over as shown by the dotted line position the shade may beturned relatively thereto without danger of breaking the tip 12; It isthus seen that the present invention PIOVldBSjL simple and ,practicaldeviceof the above character, adapted to- 1., In a, device ofthe'che'i'adter deeeriberi;

e lampshade capable of adjustment to any Poleeireol angle relative totheJOIigitudZnal axis of ll'l'blllb and adapted. to be attached. irectlyto the bulb, ancl'a gzipping device for the shede comprising a pair ofresilient wires eeeh"bent back upon itself, and. having a twistedconnection with the other adapted to form e plurality of similar gripalamp shade capable-of ecljostmexit to an desired.- angle reletlw e tothe ioiigituclmei ping arms ezieliecm lieimg limit iivsw to engage thebulb at two pomts. I

2. in a device of the character olescrilieol axis of the bulb and;eiiapt'ed to be attached directly to the bulb, end. o gripping devicefor the shade comprising a pair of resilient wires each bentgbaci; uponitself, anti having a twisted. jsonnection with the other adapted toforin a plurality of gripping" aI'Ill1 S, 9&Cl1 arm being bentiti'egiilcrlyto engage the buib at two 'pointe, and means passingthrough the twisted connection of said arms for securing the grip iingclevice to'seid shale.

In testimoii in presence oi two Witnesses.

JAMES W. DUNHAEJL "Witnesses:

J. K. Mooee, R, A. BLAH.

whereof I efiix my signetiire

